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Product Description
Charmor™ PT40 is a carbon donor for intumescent coating systems. It has a controlled and narrow particle size distribution, allowing customization of the intumescent system performance. Charmor™ PT40 with a particle size below 40 microns creates a compact stable foam structure with robust properties suitable for turbulent fire conditions. It has a slightly lower water solubility and melting point compared to Charmor™ PM 40. Charmor™ PT40 is a polyhydric alcohol containing four primary hydroxyl groups, milled into small controlled particle size.
Segment Applications
| Characteristics | Unit | Specification | Analytical Method1 | Comment |
| Monopentaerythritol content. | % | Min. 87 | PO 115-2 | |
| Hydroxyl number | mg KOH/g | 1600 - 1630 | PO 100-2 | 2 |
| Particle size < 40µm | % | Min 98.0 | PO 125-6 |
| Characteristics | Unit | Typical Value1 |
| Di-Pentaerythritol content | % | 7 |
| Water content | % | 0.1 |
| Melting point | °C | 250 |
| Water solubility (25 °C) | % | 4.7 |
| Oil absorption number (OAN) | ml/100 g | 43 |
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